Sienna Dress
Size & Fit
Material & Care
Delivery, Exchanges & Returns
Orders are typically processed within 1–3 business days and delivered within 5–7 business days after dispatch.
We accept returns and one-time size exchanges on full-priced Clothing, Bags, and Shoes within 14 days of delivery. Items must be unworn, unwashed, and returned with original tags attached.
Discounted and promotional items are eligible for store credit or a one-time size exchange only. Final Sale items are not eligible for return or exchange.
For full details, please view our Shipping & Returns Policy.
Size & Fit
Measure your bust, waist and hips, and compare your measurements with our size guide below to help determine which size will fit you best. If your measurements are in-between two sizes, we recommend choosing the smaller size unless specified otherwise in the product fit notes.
| US size | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 |
| BUST (inch) | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |
| WAIST (inch) | 24 | 25 | 26 | 27 | 28 | 29.5 | 31 | 32.5 | 34 |
| HIPS (inch) | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 |
| size | XS | S | M | L | XL |
| BUST (inch) | 31-32 | 33-34 | 35-36 | 37-38 | 39-40 |
| WAIST (inch) | 24-25 | 26-27 | 28-29.5 | 31-32.5 | 33-35 |
| HIPS (inch) | 34-35 | 36-37 | 38-39 | 40-41 | 42-43 |
- Measure your bust around the fullest part of your breasts - ensuring the tape is level at the back.
- Measure the narrowest part of your waist - above your belly button and below your ribcage.
- Measure the fullest part of your hips - approximately 9 inches below your waist.
| US | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 |
| UK | - | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| AU | - | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| FR | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 |
| IT | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
| EUR | 36 | 37 | 38 | 39 | 40 | 41 |
| US | 6 | 7 | 8 | 9 | 10 | 11 |
| UK | 3 | 4 | 5 | 6 | 7 | 8 |
